After double clicking the NDS Migrator icon the tool launches and freezes shortly after, resulting in having to end the task.
The following does not seem to resolve the issue:
This may be caused by a build up of completed or "Stuck" Workstation updater jobs in the database.
When the program launches, it automatically loads the Resource Update Monitor which pings the machines which are scheduled for updating to make sure they are contactable. When they are no longer able to be reached or there are too many to be contacted at once, this issue may occur.
Either remove the whole job or just modify the Status ID of the job to reflect a "Completed State" via SQL Management Studio.
Once this is done, retry working with the NDS migrator and the locking up should be resolved.